Thompson Reservoir   Be the first to submit input for Thompson Reservoir. If you have info on Thompson Reservoir, Madison County, Montana please submit it here to improve this web site.          These outdoors activities are available near Thompson Reservoir.   Public Lands Near Thompson Reservoir: Lewis and Clark Caverns State Park, Montana, 17 miles away Beaverhead Rock State Park, Montana, 31 miles away   Camp Grounds Near Thompson Reservoir: Balanced Rock Campground, Madison County, 2 miles away Mill Creek Campground, Madison County, 4 miles away Potosi Campground, Madison County, 8 miles away   Hotels Near Thompson Reservoir: Super 8 Whitehall, Whitehall, 18 miles away Sacajawea Hotel, Three Forks, 37 miles away Copper King Hotel and Conventi, Butte, 40 miles away Holiday Inn Express BUTTE (PARKSIDE), Butte, 40 miles away Hampton Inn Butte, Butte, 40 miles away   Ski Areas Near Thompson Reservoir: Moonlight Basin, Montana, 42 miles away       4166 foot drop, 7 lifts, 97 runs Big Sky, Montana, 44 miles away       4350 foot drop, 17 lifts, 150 runs Great Divide, Montana, 63 miles away       1503 foot drop, 6 lifts, 140 runs